| Up-Skills Company Limited | | Live |
| UPSKY LIMITED | Private company limited by shares | Live |
| UPSKY LIMITED | Private company limited by shares | Live |
| Upskyler Limited | | Live |
| UPSMART LIMITED | Private company limited by shares | Dissolved |
| UPSMART LIMITED | Private company limited by shares | Dissolved |
| UPSMART LIMITED | Private company limited by shares | Dissolved |
| UPSMART CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UPSMART INVESTMENTS LIMITED | Private company limited by shares | Live |
| UPSMOBI CO., LIMITED | Private company limited by shares | Live |
| UPSODO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UPSONIC ASIA LIMITED | Private company limited by shares | Dissolved |
| UPSOURCE LIMITED | Private company limited by shares | Dissolved |
| UPSOURCE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UPSOURCE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UPSPEED COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA UPSPIRIT CO., LIMITED | Private company limited by shares | Live |
| HONGKONG UPSPIRIT TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| UPSPRING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UPSTABLE LIMITED | Private company limited by shares | Dissolved |
| Upstage Limited | Private company limited by shares | Live |
| Upstage HK Limited | Private company limited by shares | Live |
| UPSTAGE CORPORATE THEATRE LIMITED | Private company limited by shares | Dissolved |
| UPSTAGE TRADING LIMITED | Private company limited by shares | Dissolved |
| UPSTANDER INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| UPSTANDING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UPSTANDING INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UPSTAR LIMITED | Private company limited by shares | Dissolved |
| UPSTAR LIMITED | Private company limited by shares | Dissolved |
| UPSTAR ZE LIMITED | Private company limited by shares | Live |
| UPSTAR LIMITED | Private company limited by shares | Live |
| UPSTAR TECHNICS LIMITED | Private company limited by shares | Live |
| UPSTART LIMITED | Private company limited by shares | Live |
| Upstart Leader Limited | | Live |
| UPSTARTDECK LIMITED | | Live |
| UPSTARTIST LIMITED | Private company limited by shares | Live |
| UPSTATE INVESTMENTS LIMITED | Private company limited by shares | Live |
| Upstate.Media Limited | Private company limited by shares | Live |
| UPSTEP LIMITED | Private company limited by shares | Dissolved |
| UPSTEP LIMITED | Private company limited by shares | Dissolved |
| UPSTEP (CHINA) COMPANY LIMITED | Private company limited by shares | Live |
| UPSTOCK LIMITED | Private company limited by shares | Dissolved |
| UPSTORY LIMITED | Private company limited by shares | Live |
| UPSTREAM LIMITED | Private company limited by shares | Dissolved |
| UPSTREAM LIMITED | Private company limited by shares | Live |
| Happy Upstream Limited | | Live |
| UP-STRETCH LIMITED | Private company limited by shares | Dissolved |
| UPSTROM COMPANY LIMITED | Private company limited by shares | Live |
| UPSTRONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| UPSTRONG LIMITED | Private company limited by shares | Dissolved |
| UPSTRONG INC LIMITED | Private company limited by shares | Live |
| UPSTRONG ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UP-STUDENTS LIMITED | Private company limited by shares | Dissolved |
| Upstudy HK Limited | Private company limited by shares | Live |
| UP-SUCCESS LIMITED | Private company limited by shares | Dissolved |
| UPSUNNY INVESTMENT HOLDING LIMITED | Private company limited by shares | Live |
| UPSURGE LIMITED | Private company limited by shares | Dissolved |
| UPSURGE LIMITED | Private company limited by shares | Dissolved |
| UPSURGE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UPSURGER LIMITED | Private company limited by shares | Dissolved |
| UPSVILLE LIMITED | Private company limited by shares | Dissolved |
| UPSWING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UPSWING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UPSWING Electric Company Limited | Private company limited by shares | Live |
| UP-SYSTEM LIMITED | Private company limited by shares | Dissolved |
| Uptap Limited | | Live |
| UPTEAM LIMITED | Private company limited by shares | Live |
| UPTECH LIMITED | Private company limited by shares | Dissolved |
| UPTECH LIMITED | Private company limited by shares | Live |
| HK UPTECH LIMITED | Private company limited by shares | Live |
| UPTECH POLYBAG MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| UPTECH SOFTWARE LIMITED | | Live |
| UPTEK LIMITED | Private company limited by shares | Live |
| Uptempo Limited | | Live |
| UP-TEN TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| UPTEX LIMITED | Private company limited by shares | Dissolved |
| UPTEX LIMITED | Private company limited by shares | Live |
| Upthesearch Limited | | Live |
| UPTHOUSAND LIMITED | Private company limited by shares | Dissolved |
| Upthrive Limited | | Live |
| UpTic Limited | Private company limited by shares | Live |
| UPTICK COMPANY LIMITED | Private company limited by shares | Dissolved |
| UPTICK COMPANY LIMITED | Private company limited by shares | Live |
| Uptick Network Limited | | Live |
| Uptick Technology Limited | Private company limited by shares | Live |
| Upticky Limited | Private company limited by shares | Live |
| Up-Tight Limited | | Live |
| UPTIME ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Himalayan Uptime Limited | Private company limited by shares | Live Commenced dormancy on 14-Mar-2016 |
| UPTIME INVESTMENTS LIMITED | Private company limited by shares | Live |
| UPTIME PROMOTION LIMITED | Private company limited by shares | Live |
| Uptimus Exotic Auto Limited | | Live |
| UPTIN LIMITED | Private company limited by shares | Live |
| UPTIN SA LIMITED | Private company limited by shares | Live |
| Uptitude Cloud Limited | | Live |
| UP-TO APPLIANCES (SHENZHEN) BATHING LIMITED | Private company limited by shares | Dissolved |
| UptoAds Limited | Private company limited by shares | Live |
| UP-TO-DATE ADVERTISING LIMITED | Private company limited by shares | Dissolved |
| UPTODATE TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UP-TO-DATE FURNISHERS LIMITED | Private company limited by shares | Live |